The nucleon magnetic moments are computed in lattice QCD in the quenched approximation with Monte Carlo techniques. As a by-product, the magnetic moment of the ${\Omega }^{-}$ is also calculated. It is found that ${\mu }_p=2.7\mathrm{}\pm 1.0$, ${\mu }_n=-1.6\mathrm{}\pm 0.5$, ${\mu }_{\Omega }=-1.7\mathrm{}\pm 0.6$, in nuclear magnetons, and $\frac{{\mu }_p}{{\mu }_n}=-1.6\mathrm{}\pm 0.2$.

• Received 18 August 1982

DOI:https://doi.org/10.1103/PhysRevLett.49.1076